Bronchiolitis, COVID-19, and the flu in the Hauts-de-France region. Update for November 27, 2025.

Key points

Acute lower respiratory tract infections

  • Trend remains stable at SOS Médecins; on the rise in emergency departments and according to data from the Sentinelles network. Activity levels remain low and below seasonal averages.

Bronchiolitis (< 1 year)

  • Second week in the pre-epidemic phase.

  • Activity is rising in emergency departments and stable at SOS Médecins, but with an upward trend in recent weeks.

Influenza and influenza-like illnesses

  • Non-epidemic phase: low and stable activity in primary care, according to data from SOS Médecins and the Sentinelles network, as well as in emergency departments; increase in influenza virus positivity rates.

COVID-19

  • Activity is slightly decreasing in emergency departments and at SOS Médecins; indicators remain at low levels.

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